Personally I never had to give proof of income for renting a place to live here in the US. For most places I rented a down payment/security deposit was required but times have changed considerably since Covid appeared on the scene and eviction became so problematic for property owners. For purchasing property here the seller will run a credit check. I just noticed we show to be from different countries so you need a response from someone who has experience in the realm in which you wish to rent or purchase.
To prove your income for a mortgage or rent application, you will typically need to provide documentation such as: Pay stubs: Recent pay stubs from your employer can help verify your income. You will usually need to provide several pay stubs, covering a period of time such as the past month or quarter. Tax returns: Your tax returns can provide evidence of your income over a longer period of time. You may need to provide copies of your federal and state tax returns for the past year or two. Employment verification: Your lender or landlord may request verification of your employment, such as a letter from your employer stating your position, salary, and length of time with the company. Bank statements: You may be asked to provide copies of your bank statements to show that you have a consistent stream of income and sufficient funds to cover your mortgage or rent payments. Other documentation: Depending on your specific circumstances, you may need to provide additional documentation, such as proof of self-employment income or proof of retirement or disability income. It's important to note that the specific documentation required for a mortgage or rent application can vary depending on the lender or landlord, as well as your individual financial situation. It's a good idea to ask what documentation will be needed upfront so you can gather all the necessary materials in advance.
I don't know the Pakistani system but in NZ you don't have to prove income, just have a clean credit record.
When applying for a mortgage or rent, you'll typically need: Recent pay stubs (last 2–3 months). T4 slips or tax returns (last 2 years). A letter of employment verifying your income and position. For self-employed: business financials and NOA (Notice of Assessment) from CRA. For a full list and tips to prepare, check out this guide: https://www.thinksmartmortgage.ca/post/mortgages-101-guide-for-first-time-home-buyers-in-canada